William T. O'Rourke, MD
Internal Medicine Physician · Lombard, IL
William T. O'Rourke, MD is an internal medicine physician with a practice address in Lombard, Illinois, and NPI 1013013119, issued on Sep 15, 2006. Check the license (Illinois 036096382, as entered in NPPES) on the Illinois Department of Financial and Professional Regulation; the Medicare figures below come from public CMS files.
- Name
- William T. O'Rourke
- Credential
- MD
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License numbers
- 036096382 IL
36-096382 IL
Self-reported in NPPES; status is on the state search - Practice location
- 454 E Roosevelt RD, Lombard, IL 60148
- Phone
- (630) 387-6424
- Enumerated
- Sep 15, 2006
- Record last updated
- Jul 28, 2025
- Fax
- (630) 387-6425
- Medicaid ID
- 36-096382 IL
- Medicare enrollment
- Enrolled (PECOS I20100520000510); accepts Medicare assignment
- Medical or professional school
- Loyola University Of Chicago, Stritch School Of Medicine, 1995
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
Also registered at 454 E Roosevelt RD
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Christopher Barbour, M.D.Obstetrics & Gynecology Physician1326141235
- Sabaa Joad, M.D.Endocrinology, Diabetes & Metabolism Physician1629314372
- Dhara Naik, DOInternal Medicine Physician1053607333
- Katherine Nolan-Watson, M.D.Obstetrics & Gynecology Physician1134222052
- Syeda Quadri, DOFamily Medicine Physician1003175886
- Safia Siddiqui, DOFamily Medicine Physician1891361846
Verify William T. O'Rourke in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersIllinois Department of Financial and Professional Regulation
Search for license 036096382Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
2.4 times the Medicare Part D claims of the average internal medicine physician in 2024
7,604 Medicare Part D claims for 657 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. Brand-name drugs were 12% of claims. 206 claims were for opioids.
Most prescribed
- Amlodipine Besylate515 claims
- Atorvastatin Calcium376 claims
- Levothyroxine Sodium308 claims
- Pantoprazole Sodium259 claims
- Rosuvastatin Calcium246 claims
- Metoprolol Succinate240 claims
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
The MIPS final score for 2023 (Medicare payment program): 91.4 of 100
The Merit-based Incentive Payment System score is reported for this clinician. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.
Source: CMS Quality Payment Program, MIPS performance year 2023; category weights for 2023 (qpp.cms.gov).
Bills Medicare through 3 group practices
- Advocate Health And Hospitals CorporationBuffalo Grove, IL
- Aspirus Ironwood Hospital And Clinics IncIronwood, MI
- Endeavor Health Medical GroupElmhurst, IL
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
38 internal medicine physician records list a practice address in Lombard
They are 38 of the 1,347 NPPES records with a practice address in Lombard, and 7,238 internal medicine physician records in Illinois.
All 38 in Lombard → All 7,238 in Illinois → Every provider in Lombard →
Other internal medicine physician records in Illinois
- Peter Abadeer, D.O.Bloomington, IL1760469522
- Motaz Abas, MDPeoria, IL1215510201
- Elias Abate, M.D.Chicago, IL1336712199
- Maliha Abbas, D.O.Chicago, IL1174963920
- Zareena Abbas, MDChicago, IL1427078872
- Abu Abbasi, MDChicago, IL1083243877
- Ayesha Abbasi, MDChicago, IL1376216705
- Khalda Abbasi, MDNaperville, IL1487705240
- Elmer Abbo, MDBurr Ridge, IL1710048541
- Paul Abbo, M.D.River Forest, IL1083693378
Common questions
What is William T. O'Rourke, MD's NPI number?
William T. O'Rourke, MD's National Provider Identifier (NPI) is 1013013119, issued on Sep 15, 2006. An NPI identifies a provider in billing; it is not a license.
Where is William T. O'Rourke, MD located?
The NPPES record lists a practice address at 454 E Roosevelt RD, Lombard, IL, 60148. Phone: (630) 387-6424. Providers update this record themselves, so call before visiting.
How can I verify William T. O'Rourke, MD's license?
NPPES lists Illinois license number 036096382, as entered by the provider. Search the Illinois Department of Financial and Professional Regulation at https://idfpr.illinois.gov/checklicense.html. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does William T. O'Rourke, MD prescribe under Medicare Part D?
In 2024, William T. O'Rourke, MD had 7,604 Medicare Part D claims for 657 beneficiaries; the average among internal medicine physician prescribers was 3,176. Part D covers Medicare prescriptions only.
What is William T. O'Rourke, MD's MIPS final score?
The 2023 MIPS final score is 91.4 of 100. The average among 454,083 clinicians with a measured score was 83.5.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.